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Engine Control Module (ECM) X2 (HP2)

GM1590596Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness: Engine
  • OEM: 15499466
  • Service: 88988931
  • Description: 73-Way F MX123 Series, Sealed (BK)
Terminal Part Information
  • Pins: 1, 3, 5, 6, 8, 13, 18, 21, 24, 25, 27, 30, 32, 36, 39, 41, 42, 47, 49, 54, 57, 65-67
  • Terminated Lead: 13575811
  • Release Tool: J-38125-213
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: 33467-0003/23
  • Core/Insulation Crimp: H/H
  • Pins: 2, 9, 10, 15-17, 19, 20, 34, 35, 37, 43, 44, 55, 58, 70-72
  • Terminated Lead: 13575575
  • Release Tool: J-38125-213
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: J/J
  • Pin: 73
  • Terminated Lead: Pending
  • Release Tool: J-38125-12A
  • Diagnostic Test Probe: J-35616-35 (VT)
  • Terminal/Tray: 1326030-8/17
  • Core/Insulation Crimp: A/4
Engine Control Module (ECM) X2 (HP2)

Pin Wire Circuit Function
1 0.5 PU 2121 Ignition Coil 1 Control
2 0.5 TN 1664 HO2S Low Signal - Bank 1 Sensor 1
3 0.5 PU/WH 1665 HO2S High Signal - Bank 1 Sensor 1
4 0.5 PU/WH 1668 HO2S High Signal - Bank 1 Sensor 2
5 0.5 TN/WH 1669 HO2S Low Signal - Bank 1 Sensor 2
6 0.8 L-BU 1876 Knock Sensor 2 Signal
7 0.8 GY 2303 Knock Sensor Signal
8 0.8 L-BU 496 Knock Sensor 1 Signal
9 0.8 GY 1716 Knock Sensor Signal
10 - - Not Used
11 0.5 YE 581 TAC Motor Control - 1
12 0.5 BN 582 TAC Motor Control - 2
13 0.5 PK 1339 Ignition Voltage
14 0.35 PU 5284 Cam Phasor Control
15 - - Not Used
16 0.5 PK/BK 1746 Fuel Injector 3 Control
17 0.5 PU/WH 2128 Ignition Coil 8 Control
18 0.5 D-GN/WH 2124 Ignition Coil 4 Control
19 0.5 BN/WH 2130 Low Reference
20-22 - - Not Used
23 0.35 BN 6266 Low Reference
24 0.5 BK 2755 Low Reference
25-26 - - Not Used
27 0.35 GY/BK 6272 Low Reference
28 0.5 PK/BK 1339 Ignition Voltage
29 0.35 TN 2752 Low Reference
30-31 - - Not Used
32 0.5 L-GN/BK 1745 Fuel Injector 2 Control
33 0.5 OG 2127 Ignition Coil 7 Control
34 0.5 D-GN 2125 Ignition Coil 5 Control
35 0.5 BN 2129 Low Reference
36-38 - - Not Used
39 0.35 D-BU 6259 5-Volt Reference 1
40 0.5 GY 2705 5-Volt Reference 1
41 - - Not Used
42 0.5 TN 2760 Low Reference
43 0.35 PU/WH 6270 5-Volt Reference 2
44 0.35 GY 2701 5-Volt Reference 2
45 - - Not Used
46 0.35 TN 2199 Low Reference
47 - - Not Used
48 0.5 D-BU/WH 878 Fuel Injector 8 Control
49 0.5 TN/WH 845 Fuel Injector 5 Control
50-51 - - Not Used
52 0.5 YE/BK 846 Fuel Injector 6 Control
53 0.5 OG/WH 2122 Ignition Coil 2 Control
54 0.5 L-BU/WH 2126 Ignition Coil 6 Control
55 0.5 L-BU 2123 Ignition Coil 3 Control
56-58 - - Not Used
59 0.35 D-BU/WH 6265 Camshaft Position Sensor Signal
60 0.5 TN/WH 331 Oil Pressure Sensor Signal
61 - - Not Used
62 0.5 TN/BK 472 Intake Air Temperature (IAT) Sensor Signal
63 0.35 WH/BK 6271 Crankshaft Position Sensor Signal
64 0.35 D-GN 485 Throttle Position Sensor 1 Signal
65 - - Not Used
66 0.35 PU 486 Throttle Position Sensor 2 Signal
67 0.5 YE 492 Mass Air Flow (MAF) Sensor Signal
68 0.5 GY/WH 3113 HO2S Heater Low Control - Bank 1 Sensor 1
69 0.5 GY/WH 3122 HO2S Heater Low Control - Bank 2 Sensor 1
70 0.5 L-BU/BK 844 Fuel Injector 4 Control
71 0.5 OG/BK 877 Fuel Injector 7 Control
72 0.5 TN 1744 Fuel Injector 1 Control
73 3 BK/WH 451 Ground
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